U.S. and EU export laws and UN sanctions control just a narrow slice of technology such as weapons systems or data encryption. International embargoes that cover a broader range of equipment target only a small circle of the worst actors, such as Myanmar and North Korea.

Here’s how it works: Users can hold ongoing threaded conversations within a document using time stamps and profile pictures and @mentions, similar to Facebook. They can easily add people to the conversation and ultimately remove the conversation from view on the document by resolving the issue.

A new version of Skype for Windows just launched with a few notable features. To start with, stability has been improved as has quality. Unfortunately, the group video calling feature is no longer free now that the version 5.1 software is out of beta. A day pass costs $4.99 / €3.49 / £2.99 for impromptu sessions while a monthly subscription can be had for $8.99 / €5.99 / £4.99 with a 33 percent discount available to anyone signing up for 3 or 12 month subscriptions over the next 30 days. Two-way video calling is still free.

Today we’re excited to announce that the new revision history view we added to documents is now available in spreadsheets. At a glance, you can now see all of the changes that collaborators have made cell-by-cell. Each collaborator is represented by a different color so it is easy to understand who made what changes.

Google continued its charge into the enterprise sector on Thursday with the introduction of a massive infrastructure overhaul for Google Apps. Previously, Google Apps was limited to basic services like Gmail, Calendar and Docs. Starting today, Google Apps administrators can enable the complete array of Google services, including Google Voice, Reader, Maps and more.

So I tried out the new Skype 5.0 and the good news is that multi-party video cons work, even between groups of mixed Mac and Windows users. I haven’t tried mixing in users with the new Android update, though, since it is not supported on all platforms. The bad news is that the second I tried to join a multi-party video, I got a pop-up asking me to agree to a free trial. Then I got this clever confirmatory message in email:

Your group video beta free trial has been successfully activated.

For the next 28 days you can make group video calls with your friends and colleagues.

– You and your friends all have to be on the latest version of Skype to make group video calls

OK. You’re on. But on day 29, I’m back to using MeBeam. Cause its like, you know, free.

Earlier this year, we added the ability to “Upload any file” to Google Docs so that you upload, store, and share any file up to 1 GB in size. Now you can upload new versions of the same file to your document list. Previously, each time you updated a file, you would have to upload the new version as a new file with a new URL, re-share it, and put in the correct folders again.

When you select the “Add or manage versions” option on any file, you can upload new versions of a file, download previous versions, and delete older versions.